Exports of locally made chips surged 41.9 percent on-year to a fresh record high of $7.5 billion in the one-month period due to increasing demand for cutting-edge smartphones.

Overseas sales of flat screens continued their upside cycle to jump 19.5 percent last month from a year earlier to a seven-month high of $2.34 billion, while shipments of petroleum products shot up 63.3 percent to $3.08 billion, the largest since June 2016, amid an uptick in oil prices.

Exports of cars rose for two straight months in March to gain 4.1 percent on-year, while those of machinery vaulted 17.6 percent last month.

Outbound shipments of cosmetics advanced 14.2 percent on-year to a record $450 million on steady popularity of South Korea beauty products in Southeast Asia.

On the downside, exports of wireless devices, such as mobile phones, backtracked for the eighth straight month, dropping a record 26.4 percent on-year. The poor showing reflects the fallout from the recall of the Galaxy Note 7 phablet.

By region, South Korea's exports to China expanded 12.1 percent last month from a year earlier to mark the first five consecutive months of increase in 35 months, while those to Vietnam moved up for the 14th month in a row in March.

Exports to Japan also landed in positive terrain for the fifth straight month to post an 18 percent jump in March led by a rise in exports of petrochemicals and steel products.

However, exports to the United States decreased 5.3 percent in March on weak demand for wireless devices and auto parts, with a trade surplus with the world's largest economy falling to $23.3 billion from $25.8 billion over the one-year period. (Yonhap)